Sickle-bar.



W. L. KIBBE.

SIGKLE BAR.

APPLICATION FILED 00130, 1908.

Patented May 18, 1909.

William L. 3558.

WILLIAM L. KIBBE, OF JOHNSON, KANSAS.

SICKLE-BAR.

Specification of Letters Patent.

Patented May 18, 1909.-

Application filed October 30, 1908. Serial No. 460,317.

To all whom it may concern:

Be it known that 1, WILLIAM L. KIBBE, a citizen of the United States,residing at Johnson, in the county of Stanton and State of Kansas, haveinvented new and useful Improvements in Sickle-Bars, of which thefollowing is a specification.

This invention relates to sickle bars, and more particularly to theconstruction of the fingers, and has for an object to provide a simpleand novel form of ledger plate for each finger of the said sickle barand to construct the said plates so that they will effectively take uplost motion of the cutting knife, thus allowing the same to work at alltimes with perfect freedom and with accuracy.

A further object of this invention is to provide means which will enablethe knife bar to be removed from the fingers without removing the usualhead at the end of the said cutter bar.

Other objects and advantages will be apparent as the nature of theinvention is better set forth, and it will be understood that changeswithin the scope of the claims may be resorted to without departing fromthe spirit of the invention.

In the drawing, forming a portion of this specification and in whichlike numerals of reference indicate similar parts in the sevoral views:Figure 1 is a perspective View of the sickle bar, Fig. 2 is atransverse sectional view taken on the line 22 of Fig. 1, Fig. 3 is abottom plan view of one of the fingers, Fig. 4 is a perspective view ofone of the ledger plates, Fig. 5 is a perspective view of another of theledger plates, Fig. 6 is a detail section taken on the line 6-6 of Fig.1.

Referring now more particularly to the drawing, there is shown a sicklebar 1 which consists of a finger bar 2 adapted to receive the reducedportions 3 of guard fingers 4. Each finger is provided with aliningsubstantially semi-circular grooves 5 for a purpose to be hereinaftermore fully described. Each groove opens onto the flat face 6 of itsfinger and as shown, the said flat faces of the fingers have disposedthereabove the overhanging portions 7 in the ordinary manner. Metallicledger plates 8 are provided for the fingers 4 and are formed each froma single piece of sheet material bent in tubular form as shown at 9 tofit the grooves 5, and as shown, each finger is provided with a slot 10to aline with the open portions of the grooves 5 and with lips 11 seatedupon the flat faces 6 of the fingers. A shoe is shown at 12 and is alsoprovided with a groove 13 disposed in line with the grooves 5 but issomewhat larger in diameter and receives the tubular portion 14 of aledger plate 15 which is also provided with a lip 16 similar to thelips11. The ledger plate 16 is provided with a slit 17. The tubularportion 14 of the ledger plate 15 receives a correspondingly shaped head18 at one end of a knife bar 19. The head 18 is provided with acontracted neck 20 disposed in the slit 17 in the tubular portion 14 ofthe ledger plate 15, and as shown the said neck is provided with a head21 in which is formed threaded passages 22 for receiving correspondinglythreaded stems of set screws 23 which are thus adapted to engage thecutter bar 19 and to hold the same engaged with the said head. Thecutter bar 19 is formed from two semi-cylindrical strips 24 and 25having disposed therebetween cutting knives 26 of usual construction.The knives 26 are thus disposed in such manner that they oper ate uponthe upper surfaces of the lips 11 and 16 of the plates 8 and 15. It isobvious that the lips 11 thus obviate wear upon the fingers 4 and thetubular portions of the said plates also obviate wear upon other partsof the fingers as will be clearly appreciated, and it will be understoodthat should lost motion present itself at the cutter bar it can bequickly traced to the particular objectionable finger and such troublereadily overcome by the displacement of worn plates and replacing thesame by new ones. Each finger is preferably provided with a squaredpassage 27 to receive the correspondingly shaped head 28 of a clampingbolt 29 adapted to be engagedwith the finger bar 2. It is desirable toretain the knives 26 to the knife bar by means of dowel pins or likefastening devices shownat 28 in the drawing.

By constructing the cutter bar in the manner herein shown and describedit is obvious that it may be removed from the head 18 without disturbingthe latter from its driven connections. It will of course be obviousthat the said head. 18 may be connected in any suitable manner to impartto the knife bar reciprocatory motion.

Having thus described the invention what is claimed as new, is

1. A finger bar having a plurality of guard fingers provided withalining grooves, ledger plates carried by the fingers provided withtubular rear portions seated in said grooves,

nI-A

and a cylindrical cutter bar mounted in the gers provided with alininggrooves, cutting tubular portions of said plates.

knives ledger plates carried by the fingers 2. Afi nger barhavingaplurality of fingers having portions at the rear seated in saidprovided With alinlng grooves, ledger plates grooves, said portionshaving ahning slits having tubular rear portions seated in said formedtherein through Which are disposed grooves a cylindrical sickle barmounted in the tubular portions of said plates, said tubular rearportions of the ledger plates having in presence of two longitudinallyextending slits formed therein so that the knives of the sickle bar arefree for reciprocatory motion.

8. A finger .bar having a plurality of finportions of said cuttingknives.

In testimony whereof I affix my signature Witnesses. lVlLLIAM L. KIBBE.WVitnesses MAX VAN HALL, CHAs. E. HOFFMAN.

